Paper holder



1. A; F. GRIMBEL nu 8018.

PAPER HOLDER.

AEPLICATION FILED JUNE 27,1921.

Patented Apr. 25, 1922.

J. A. F. G. DU BOIS.

PAPER HOLDER.

APPLICATION FILED )UNE27, iszl.

Patented AprQ25, 1922.

3 SHEETS-SHEET 2.

A TTORIIE Y 8 1. A. r. GRIMBEL nu B018.

PAPER HOLDER.

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To all whom it may concern:

Be it known that I, J osnrn ApF. GRIMBEL DU Bois, a citizen of Holland, and a resident of Amsterdam, Holland, have made certain new and useful Improvements in "Paper I Holders, of which the following is a specification.

The present invent-ion relates to paper holders, and more particularly to paper hold ers of the type especially adapted to retain sheets of paper in desired position.

An important object of the invention is to provide a paper holder of this character which will be effective to retain a letter,

check, bill, or sheet of paper of any kind in I position for convenient observation or in certain position when in process of assortment, irrespective of the influences of air currents or other forces tending to displace the sheets from proper position.

Another important object is to provide a paperhol'der-of this character whichis automatic in, operation, requiring only a single movement of one hand of the operator to place the sheet in proper position under the control of the paper holder.

Other objectsand advantages reside in the certain novel features of the construction, arrangement and combination of parts which will become apparentjas thefdescription proceeds, reference being had to'the accompanyarrows;

ing drawings forming part of this specification, andin which Figure 1 is a side elevational view of my inventlon Wlth' the parts in normal position, a sheet be1n g about tobeplaced in the paper holder;

Figure 2 is a sectio'nal view taken on line of the arrows;

Figure 3 1s a plan View and associated structure;

of Figure 1 looking "in the direction of the grippers Figure 41 isa sectional View on lined-4 of Figure 1, looking in the direction of the arrows Figure 5 is a sectionalvi'ew on line 5-5 of Figure 1, looking in the fdire'ctionbfthe Figure 6 is a side elevational' View show-' mg the parts ln'posltion assumed immeon the table; 7 v I, V v

Figure 7 is a side elevational view showing the parts in'positionas'su'med immediately after the sheet is properly positioned onthe table.

specification of Letters went. P tented Apr. 7 25, 1922.

Application filed June 27, 1921. semi No. 480,675:

"Referring to the drawings it will be seen the'invention contemplates a support indicated generally at 10,-which consists of a bed '11 mountedupon legs 12. The bed 11 is provided with an extension 13 and with a bearing 14 for a purpose to be hereinafter more fully described.

The bearing 14 depends vertically from the bed 11 and is of hollow cylindrical structure having a vertical slot 15 at one side thereof, as shown in Figure 2. o A table 16 adapted to receive the from. Vertically depending from the table 16' is a supporting rod 17 which is slidably journaled in the bearing 14 of the bed. A

coil spring QO'is mounted on the supporting rodl17 having its lower end bearing against the table, and itsupp'e'r end bearing against a collar '21 secured upon the upper end of sheets disposed above the bed 11 and spaced there the supporting rod 17 by the set screw-22. V:

The lower end of the supporting rod 17 has integrally formed therewith an outwardly and upwardly '5 extending arm 23 having an 7 outer incline'd surface 2 1 constitutinga cam,

will belhereinafter more fully described.

The cam passes throughra slot in'the bed 11 and prevents rotary motion of thetable 16. d

A stop'25 is secured .tothe upper side of the bed 11 and serves to limit v the movementof minate inbearings 29 which receive theshaft 30 uponwhich the grippers 31' are journaled; The grippers 31 comprise body portions of heavymetallic structure, and preferably are providedwith a suitable groove therein to, receive cushioning elements preferablyin the 1 form of rubber tires-31,c The shaft 30' fits loosely in the bearings 29 so as to permit ro; tarymovement of the; grippers. As shown especially in Figure 3,]thereisa pair of curved gripper arms 26 which are spaced from each other. and preferably are con} nected by all integ'raljweb 32 3 [Means are provided for resiliently main;

tainingfl'the grippers 31 normally bearing] against; the table 16 and for returning the grippers to this position. This means in,

cludes a retractile spring 33h'aving one end secured to the bracket 34 depending' from placing the sheet the operator exerts a pres sure upon the table and depresses the same the underside of the bed 11 and its other end secured to the cross pin 35 fastened to the vertically depending portions 27' of the curved gripper arms.

A push rod 36 is disposed beneath the bed 11 and serves to transmit motion from the cam 23 to the gripper arms to actuate the same through the desired movements. On the end of the push rod adjacent the cam a yoke 37 is secured, and is provided at its outer end with eyes in which the shaft 38' is journaled. A follower 39 is loosely mounted on the shaft centrally thereof and guide rollers 40 are loosely mounted adjacent each end of the shaft. The guide rollers 40 of the shaft 38 operate in channel guides 41, which are suspended bysuitable brackets 42 from the lower side of the bed.

The push rod 36 extends through a suitable opening provided in the bracket 34 and adjacent the bracket 34 a hanger-43 depends upon the underside of'the bed 11 between the rollers 44 of which, the push rod 36 is mounted. It is obvious that the portion of the push rod between the channel guides 41 and the hanger 43 is constrained to rectilinear motion. The end of the push rod remote from the cam is mounted for vertical swinging motion as well as for rectilinear motion by virtue of the joint 45. This swinging section of the push rod is normally held for rectilinear motion by guide roller 46 engaging the underside thereof, and a blade spring 47 engaging the upper side thereof.

The followerof the push'rod is maintained at all times in engagement with'the cam 23 by a coilspring 48 mounted on the push'rod and having one end bearing against the bracket 34 and the other end bearing against a collar 49 secured to the push rod, as shown in the drawings. V

The outer end of the push rod is provided with a roller 50 which bears against the abutment block 51 loosely mounted upon the shaft 52 entending between the lower ends of the curved gripper arms 26. The outer end of the block 51 is looselymounted upon a shaft 53 parallel to the shaft 52 and supported in a parallel link 54 having its lower end pivotedat 55 also parallel to the shaft 28. A sheet indicating a letter, check, bill or the like is indicated at 56.

In operation when it is desired to place the sheet upon the table it is laid thereon in the position shown in Figure 1, with the upper end or head of the sheet lying upon the top of the grippers and gripping arms. In

against the action of the'spring 20, as shown in Figure 6. The depression of the table moves the cam 23 downwardly and the cam engaging a follower of the push rod in turn moves the push rod longitudinally. The roller 50 of the push rod engaging the abutment block 51 causes the curved arms 26 to swing about the fulcrum 28 against the action of spring This swinging movement of the gripper arms moves the grippers upwardly and away from the table and the sheet then drops by gravity to the table, as shown in Figure 6. When the sheet lies upon the table in proper position, the table 16 has been depressed to the full extent, the stop 25preventing further depression. At this time theabutment block 51 has beenthrown about the shaft 28 and the shaft 55, by the action of the roller 50 of the push rod until the top edge of the block lies below the center of the roller 50. A component of the force of the retractile spring 83 is then exerted to throw the swinging section of the push rod upwardly above the abutment block and the grippersare then thrown to position to engage the sheet by the retractile spring 33, all of which occurs of course immediately as the table has been depressed to the full extent and does not depend upon therelease of pressure bythe operator. When the opera tor does release the table, the spring 20 at once moves the same upwardly to normal position shown in Figure 1, carrying the cam 23 with it. The coil spring 48 then returns the push rod to the position shown in Figure 1. V

In this manner a sheet or any number of sheets may be positioned for convenient ob servation or in desired place, and effectively retained in position, irrespective of theinfluence of air currents or other forces tending to displace them from proper position.

Iclaim: 1. In a paper holder of the character-(la scribed, a support including a bed having a bearing therein, and a bed'extension, a depressible table disposed above said bed and spaced therefrom, a vertically depending supporting rod carried by said table and slidably mounted in said bearing, a coil spring mounted on said supporting rod for maintaining said table in normal position, grippers associated with said table and normally bearing thereagainst, curved grip per arms carrying said grippers haying lower vertically depending arms fulcrumed to said bed extension, a cam carried by said supporting rod and actuated by the depression of said table, means for transmitting motion from said cam to said gripping arms for moving said grlppers away from said table to permit a sheet to be placed thereon, V

posed above said support and spaced therefrom, spring means for maintaining said table in normal position, grippers associated with said table and. normally bearing thereagainst, curved gripper arms carrying said grippers, and each having a vertically depending arm' fulcrumed to said support, an abutment block carried between said gripping arms, a cam actuated by the depression ofsaid table, means for transmitting motion of said cam to said gripper'arms including a push rod having a vertically swinging section, automatically disconnected from en gagement with said abutment block when the sheet is in proper position on said table, and a retractile spring for returning said grippers to said table to retain said sheet in position thereon.

3. In a paper holder of the character described, a support, a depressible table disposed above said support and spaced therefrom, spring means for maintaining said table in normal position, grippers associated with said table and normally bearing thereagainst, curved gripping arms carrying said grippers, and each having a vertically depending arm fulcrumed to said support, an abutment block carried'between said gripping arms, a cam actuated by the depression of said table, and means for transmitting motion of said cam to said gripper arms including a push rod having 1a vertically swinging section, automatically disconnected from engagement with said abutment block when the sheet is in proper position on said table. p

a. In a paper holder of the character described, a support, a depressible table'disposed above said support and spaced therefrom, spring means for maintaining-said table in normal position, grippers associated with said table and normally bearing thereagainst, a cam actuated by the depres-' sion of said table, means for transmitting motlon of said cam to sa1d grippers including a push rod, and a sprlng for ma1nta1n ing said push rod in engagement with such from, spring means for maintaining. saidv table in normal position, grippers associated with said table and normally bearing there- 'against, a cam actuated by'the depression 7 of said table, means for transmitting'motion of said cam to said grippersincluding a push rod, and means for returning sa1d grippers to said table to retain said sheet in position thereon, all as and for the pur-. poses set forth.

6, In a paper holder of the character described, a support, a depressible table disposed. above Said supportand spaced therefrom, spring, means for maintaining said tabl in normal position, grippers associated with said table and normally bearing thereagainst, a cam actuated by the depression of said table for moving said grippers away from said-table'to permit a sheet to be placed thereon, and means for'returning said grip pers to said table to retainfsaid sheet in position thereon, all as and for the purposes set forth. I I

7. In a paper holder of the character described, a support, a depressible table dis posed above said support and spaced there-,

from, spring means for maintaining said with said table and normally bearing thereagainst, a cam actuated bythe' depression of said table, means for transmitting motion from said cam to said grippers to move the same away from said table to permit a sheet to be placed thereon, and means for returning said grippers to said table to retain said sheet in position thereon, all as and for the purposes set forth.

8. In a paper holder of the character described, a support, a depressible table disposed above said support and spaced there'- r from, spring means for maintaining said table in normal positlon, grippers asso- 1 ciated with said table and normally bearing thereagainst, a cam' actuated'by the, depres sion of said table, means for transmitting motion from said cam to said grippers ,to'

H move the same away from said table to. per

mit a sheet to be placed thereon, and auto-;

matically disconnected when said sheet is in position thereon, and. means for returning f said grippers to said-table to retain said sheet in position thereon, all asand for the purposes set forth.

9. In a paper holder of the characterlde-" v scribed, a support, a depressibletable disposed above said support and spacedtherefrom, spring means for maintaining the table in normal position, grippers associated with said table and normally bearing there against, curved gripper arms carrying said grippers and each having avertical depending arm fulcrumed to said-support, anabutment block carried between said gripper arms,

a cam actuated by the depressionof said table, 7

means for transmitting motion of said cam to said gripper arms including. a; push rodhavpush rod is automatically"disengaged from the abutment block when the sheet is in proper position on said table, and means for returning said grippers to said table'to retain said sheet in position thereon.

JDSEPH ANTONIUS FREDERIK GRIMBEL du B015. 

